Method of forming roofing-strip blanks



Nov. 27, 1923 F. c. QVERBURY METHOD OF FORMING ROOFING STRIP BLANKS Or Filed March 24, 1916 in this country a ve Patented Nov. 27, 1923.

NITED STATES PATENT OFFICE.

FREDERICK C. OVERBUBY OF RUTHERFORD, NEW JERSEY, ASSIGNOB TO FLIN'TKOTE UFACTURING COMPANY, OF BOSTON, MASSACHUSETTS, A. CORPORATION OF NEW JERSEY.

Application filed March 24, 1916, Serial No. 86,456. Renewed October 5, 1921.

To all whom it may concern.

Be it known that I, Fnnnmucx C. OVER- BURY, a citizen of the United States, residing in the city of Rutherford, county of Bergen, and State of New Jersey, have invented certain new and useful Improvements in Methods of Forming Roofing-Strip Blanks, of which the following is a specification.

This invention relates to improvements in roofing strip blanks and refers more articularly to a strip made from roofing s eets of abnormal vwidth, the sheets being preferably formed of a felt or flexible foundation, saturated or coated with a bituminous binder or adhesive material, which is in turn covered with a granular facing.

In the last few years there has developed extensive demand for prepared flexible roo ng, which roofing is for many reasons being used and more and more extensively in lieu of the old wooden shingles and also in lieu of metallic roof coverings of many kinds. This flexible roofing was first used commercially in rolls of plain or unornamented appearance and for that reason was not popular on buildings of the higher class. Later it..was ornamented by notching the roofing sheet to simulate tile shingles and the like as is shown in some of the earlier patents issued to me. Because it was easy to lalyi and had many other advantages, the ro ed roofing in many instances was supplanted by What is known as a shingle strip adapted to be shipped flat and of considerably less length than the roll, or in other words a popular len h consistin of four to eight shingles. 0th the roll strips and the so-called shorter strip have their advantages. As the demand for ornamented shingle strips or shingles increased the taste of the user also demanded more variation in ornamental appearance. Yet it is, at all times, necessary from the manufacturers standpoint to bear in mind the cost of manufacture, waste, facility in shipping, ease in laying, etc. It has also been determined that what seem to be apparently slight modifications in the prior art really result in marked commercial advantages to the manufacturer who can avail himself of these improvements over thatsof his comtitor who is compelled to rely on what has een done, the competition in this art being particularly keen.

The present invention has for its object to METHOD OF FORMING ROOFING-STRIP BLANKS.

Serial No. 505,567.

provide a shingle strip and method of maklng same in which the shingle strip can be .formed having ornamented edges of different character or designs on opposite edges of the strip whereby the user can have a choice of design from the same strip. This feature will frequently in practice very materiall enhance the selling value of the goods. nother object of the invention is to utilize the entire blank for making same kind of strips. Coupled also with the above is the idea of providing the strip blank and method of forming same which has the advantages heretofore referred to from the economic standpoint of the manufacturer. I have also found that the construction shown in the drawings is particularly desirable and meets the objects above numerated.

In the drawings:

Fig. 1 designates a section of roofing sheet showing how the same is cut in accordance with my invention.

Fig. 2 shows one. way in which the blanks may be laid to form a roof.

Fig. 3 shows another manner in which the blanks may be laid for the same purpose.

Fig. 4 is a four shingle roofing strip.

Fig. 5 is a two shingle roofing strip.

Referring to the drawings, there is shown a sheet of roofin which may consist of a flexible back or oundation of felt or other fibrousmaterial saturated or coated with a bituminous binder, and provided on one side with a granular or grit surfacing adhesively united to the binder in a well known manner. This roofing sheet is generally fed from a roll to suitable formnig machinery where the sheet is cut into a roofing blank in the manner now to be described. The sheet in the present "instance may be forty inches in width or sixty-four inches in width or whatever width that may be, desired. The sheet is cut as follows:

-On the outer longitudinal edges are formed a plurality of narrow relatively deep notches 1 and 2, which notches .being cut from the original edges are open at one end and closed at the other end as shown. The notches 1 as well as the notches 2 are spaced equi-distant from each other and symmetrically arranged on the sheet. Centrally on the sheet is formed double length notches 3, 3 which are in the present instance offset relative to the notches 1 and 2 and closed at both ends as shown. It will be noted that the notch lam as the not.

1 are substantially twice as s l and 2 but of the same width. The sheet is severed longitudinally as shown at 44, the line of severance being centrally through the length of the closednotches 3. Midway between the inner ends of the notches 1 and the adjacent ends of .the notches 3, the sheet is severed by a zigzag cut 5, the cut being so arranged that the apexes 6 of the zigzag line 5 are opposite the center of the closed end-8 of the adjacent notch 3 and the apexes 6' are opposite the center of the closed ends 1 of the notches 1. In the same way, a zigzag out 9 is formed midway between the closed ends of the notches 2 and the adjacent closed .ends of the notches 3, the apex 10 of the cut 9 being opposite the center of the closed ends 8 of the. notches 3 and the apexes 10' bein opposite the center of the closed ends 2' 0 the notches 2. The sheet is severed transversely along the lines 11, each line 11, being formed between an apex 6 or 10 and the center of the closed end 8 of the notch 3. The sheet is also out along the transverse lines 12, these lines 12 extending from the apex 6' or 10 of the zigzag cuts'G and 9, respectively and the center of the closed ends 1' or 2 as the case may be. These cuts 11 and 12 are so located that when the blank is completely severed along all its lines of severance, there will be have at their ends half-notches or shoulders 13. W the strips are laid on a roof, the I res 13 at the end make notches of i shown in the drawings. lit in u of course, be seen that for practical purposes the sheet may be double the width shown in the drawing'but thearrangement of the various lines at severance and cuts will be the same.

ll am aware that numerous patents have been issued in this art showing various forms of notching but as far as I know the construction shown in this drawing is novel. The invention is not limited to the details of construction shown except as set forth in the appended claim.

I claim as my invention:

A process of producin from a length of.

roofing material of suffic1ent width to-make at least four unit roofing strips each simulating in appearance, when laid in a roof, a plurality of individual shingles, comprising forming equidistantly spaced cut-out portions along thelongitudinal outer edge of said strip of material, and forming a series of equidistantly spaced cut-out portions intermediate the outer edges of said strip of material, longitudinally severing said length of material along substantially un: dulating spaced lines which do not intersect the cut out portions, longitudinally severing said length along a substantially straight line which intersects the intermediate cut out portions and transversely severing said length of material at predetermined spaced points for forming four unit strips from the width of said length of material, each of the unit strips having along one edge a series of notches, and along its opposite edge cut-out portions of different configuration "from said notched edge.

FREDERICK C. OVERBURLU 

